AC-to-DC converter

Details AC-to-DC converter AC-to-DC converter

1975-07-14

1977-05-03

Shoop, William M.

Electricity: power supply or regulation systems

Remote sensing

323DIG1, 318345E, H02M 7155

Patent

active

040217213

ABSTRACT:
A controlled AC-to-DC converter comprising a transformer having at least three taps including a center tap and first and second taps, a first thyristor whose cathode is connected to said first tap of said transformer, a second thyristor whose cathode is connected to said second tap of said transformer, a diode whose cathode is connected to said center tap of said transformer, a first output terminal connected to said cathode of said diode, a second output terminal connected to anodes of said first thyristor, said second thyristor and said diode, a D.C. output being produced across said first and second output terminals, and a retardation coil incorporated between said center tap and an electrical juncture between said cathode of said diode and said first output. In such converter, high harmonic frequency components generated in the A.C. current on the power source side are reduced without the disadvantage of the lowering of the efficiency.

REFERENCES:
patent: 3152296 (1964-10-01), Meszaros
patent: 3233165 (1966-02-01), Bedford
patent: 3388312 (1968-06-01), Klein
patent: 3443195 (1969-05-01), Hoffman, Jr. et al.
patent: 3735239 (1973-05-01), La Duca
patent: 3911324 (1975-10-01), Bishop

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